Koch brothers, Romney, Bush and now the Harvard Republican Club is also #NeverTrump.
And meanwhile many of my GOP Jewish friends are unswayed. I think their recalcitrance comes down to two things:
1) 25 years of anti Hillary propaganda made a dent
2) Taught in the 80s that Republicanism is cool, they haven't been able to adjust to the new reality. They are the equivalent of the often bemoaned liberal democratic voters who fell in love with FDR and were never able to vote GOP again. Not incidentally these same guys also won't wear slim suits.